Exam 8: The Sensorimotor System

In 1937, the primary motor cortex was mapped by electrically stimulating the cortex of conscious human subjects who were undergoing neurosurgery.This was accomplished by

A highly skilled typist can type 120 words per minute only because

According to current theory, the sensorimotor system

Contralateral neglect typically results from damage to the __________ posterior parietal cortex.

-Illustrated here is a

It has been estimated that over half the neurons of the brain are in a structure that constitutes only 10% of the brain's total mass.This structure is the

Muscles are protected from damage caused by excessive contraction by

In general, the ventromedial descending motor tracts control the muscles of the

Discuss the concept of central sensorimotor programs.Describe and discuss three of their important features.

Two muscles whose contraction produces the same movement of a joint are said to be __________ muscles.

Which midbrain structure receives visual and auditory information about spatial location?

Bob tried to open a jar of pickles, but the lid did not budge.The muscles of his hands and arms were

Some of the supplementary motor area is in the

Discuss the anatomy, circuitry, and function of muscle spindles.Use diagrams of the muscle spindle feedback circuit in your answer.

Long bursts of stimulation applied to the primary motor cortex elicit

Apraxia is usually caused by lesions to the

The cerebellum is thought to

When a motor neuron fires, all of the muscle fibers of its motor

Which of the following requires an inhibitory interneuron?

Large lesions to the right parietal lobe sometimes produce